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A020789
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Decimal expansion of 1/sqrt(32).
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1
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1, 7, 6, 7, 7, 6, 6, 9, 5, 2, 9, 6, 6, 3, 6, 8, 8, 1, 1, 0, 0, 2, 1, 1, 0, 9, 0, 5, 2, 6, 2, 1, 2, 2, 5, 9, 8, 2, 1, 2, 0, 8, 9, 8, 4, 4, 2, 2, 1, 1, 8, 5, 0, 9, 1, 4, 7, 0, 8, 4, 9, 6, 7, 2, 4, 8, 8, 4, 1, 5, 5, 9, 8, 0, 7, 7, 6, 3, 3, 7, 9, 8, 5, 6, 2, 9, 8, 4, 4, 1, 7, 9, 0, 9, 5, 5, 1, 9, 6
(list; constant; graph; refs; listen; history; internal format)
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OFFSET
| 0,2
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COMMENTS
| Equals 0.176777.. =5*sqrt(2)/40, which is a tenth of sum_{n=1..infinity} n^2*binomial(2n,n)/8^n [D. H. Lehmer, Am. Math. Monthly 92 (1985) 449]. [From R. J. Mathar (mathar(AT)strw.leidenuniv.nl), Mar 04 2009]
1/Sqrt(32)=0.176776695296636881100211090526212259821208984422118509147084967248841559808.. [From Vladimir Orlovsky (4vladimir(AT)gmail.com), May 30 2010]
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MATHEMATICA
| RealDigits[N[1/Sqrt[32], 200]] [From Vladimir Orlovsky (4vladimir(AT)gmail.com), May 30 2010]
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CROSSREFS
| Sequence in context: A197687 A188943 A093349 * A153857 A093813 A092902
Adjacent sequences: A020786 A020787 A020788 * A020790 A020791 A020792
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KEYWORD
| nonn,cons
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AUTHOR
| N. J. A. Sloane (njas(AT)research.att.com).
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